The Washer,recessed, cataloged under National Stock Number 5310-00-377-4853, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Meritor Heavy Vehicle Systems, Llc. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-377-4853 |
| Primary Part Number | 2803L480 |
| Item Name | Washer,recessed |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Style Designator | RECESSED |
| Material Document and Classification | QQ-S-633 CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.625 INCHES NOMINAL IN |
| Recess Depth | 0.062 INCHES NOMINAL IN |
| Material Thickness | 0.193 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN |
| Recess Diameter | 2.281 INCHES NOMINAL IN |
| Material | STEEL COMP 1045 OVERALL |
| Hole Diameter | 2.156 INCHES NOMINAL IN |
| Recess Angle | 45.0 DEGREES NOMINAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2803L480 | Hme, Inc. Dba Hme Ahrens-Fox (USA) |
| 2803L480 | Meritor Industrial Products, Llc (USA) |
| 2803L480 PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 398G22 | C/1 Advisory reference — outside the item-of-supply concept Oshkosh Defense Llc |
| 398G22 | 5/9 Secondary reference Oshkosh Corp |
NSN 5310-00-377-4853 is a Washer,recessed, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-377-4853 has 3 manufacturer part numbers on file: 2803L480 (Hme, Inc. Dba Hme Ahrens-Fox), 2803L480 (Meritor Industrial Products, Llc), 2803L480 (Meritor Heavy Vehicle Systems, Llc).
Key specifications for 2803L480: Overall Height: 0.193 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN; Style Designator: RECESSED; Material Document and Classification: QQ-S-633 CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 2.625 INCHES NOMINAL IN. 9 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.